June 7th, 2012, 6:56 am
COVAR(x,y) = E[(x-m(x)).(y-my))] = E[x.y] - E[m(x).y] - E[x.m(y)] + E[m(x).m(y)] = what you asked (as constants can be taken out of expectation)futureoptions, by asking really basic questions you are wasting your currentoptions...